653641428 has 24 divisors (see below), whose sum is σ = 1663814880. Its totient is φ = 198073120.

The previous prime is 653641427. The next prime is 653641459. The reversal of 653641428 is 824146356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653641427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2475783 + ... + 2476046.

It is an arithmetic number, because the mean of its divisors is an integer number (69325620).

Almost surely, 2^653641428 is an apocalyptic number.

It is an amenable number.

653641428 is an abundant number, since it is smaller than the sum of its proper divisors (1010173452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653641428 is a wasteful number, since it uses less digits than its factorization.

653641428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951847 (or 4951845 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 653641428 is about 25566.4121065119. The cubic root of 653641428 is about 867.8537079936.

The spelling of 653641428 in words is "six hundred fifty-three million, six hundred forty-one thousand, four hundred twenty-eight".